Compare software

CurrPortsTCPView
Free

Freeware from NirSoft; free to redistribute as long as nothing is charged.

 Free

Free to download and use. The software is closed source.

Windows Windows
  • Shows the process, path and user behind every open port
  • Can close TCP connections and kill the owning process
  • It lists every endpoint with the owning process, remote address and state, and lets you close a connection…
  • Official requirements list Windows versions up to Windows 10
  • The 'Use DNS Cache For Host Names' option leaks memory during long auto-refresh sessions
  • It is closed-source Microsoft freeware with no history or alerting; it shows the current picture only.
Downloadable app Downloadable app
Closed source Closed source
License: Freeware License not stated
No account needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked October 8, 2026

Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.